Semen analysis
Count, motility and morphology under microscopic review, benchmarked against WHO reference values.
Central London · Data-driven diagnostics
Fertility Signal turns complex laboratory results into a single, clear score - with a protocol that tells you exactly what to do next.
The Fertility Signal Score
We turn your laboratory results into a single, easy-to-read score out of 100. It's built from five clinically meaningful signals - so instead of pages of numbers, you get one clear picture of where you stand and what to do next.
The five signals we measure
What your score means
Your results sit in a healthy range. Focus on maintaining your current lifestyle and revisit periodically to keep track.
Some signals need attention. A targeted protocol and a retest in 8–12 weeks can often move your score up meaningfully.
A clinical review is worth booking. Our team will walk you through the specific signals affecting your score and the next steps available.
Why now, not later
Most men only learn there's a problem after 6–12 months of trying to conceive. By then, many treatment windows have narrowed. Sperm quality, DNA integrity, and hormone profiles can shift for years before any symptom appears.
A single test gives you a baseline. Repeat testing turns that baseline into a trend - and a trend is what actually drives action.
What we analyse
Count, motility and morphology under microscopic review, benchmarked against WHO reference values.
Detects damage that a standard semen analysis misses - a leading cause of unexplained infertility.
Testosterone, FSH, LH, prolactin, oestradiol - the endocrine picture behind sperm production.
Metabolic and inflammatory markers that quietly shape reproductive outcomes.
How it works
Choose a time at our Marylebone clinic. Discreet, private, no waiting rooms.
Semen sample and a short blood draw. Around 30 minutes on-site.
A clinician reviews your results. You get a private dashboard login with your score, breakdown, and protocol.
Targeted lifestyle, supplement or clinical support based on which signals are low. Retest in 8–12 weeks.
Serving Central London & beyond
Our clinic is on Baker Street. Patients travel from across London, the Home Counties, and further.
Common questions
Any man aged 25 or over who is planning children in the next few years, any couple that has been trying for six months or more, and anyone preparing for IVF or considering egg or sperm freezing.
Semen and hormone results are usually ready within 3–5 working days. DNA fragmentation can take up to 10 days depending on the panel.
Scores above 80 sit in the strong range, 60–79 is borderline, and below 60 typically means a clinical review is worth booking. Your dashboard explains what each individual signal contributes.
Fertility Signal is a private service run by the Marylebone Diagnostic Centre. Same-day booking is usually available and results are delivered through a private patient portal.
No. You can book directly. If your result suggests further investigation, our clinician will explain the next steps clearly.
Book your Fertility Signal test at 73 Baker Street, or call the clinic directly.